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sql query to groupby with a deduplicated column


I think the problem is you just need to do a distinct 1; as you pointed out.

select date_trunc('week', datetime)
wdt, event_name, count(distinct 1) 
from events
group by wdt, event_name;

however with out the raw data and some samples, I'm not sure how to confirm as I can't see why count 31 and 29 would occur for the same date (10/27) in wdt for the same event_name.


Categories : SQL

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